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Castleark Management’s Fastly Inc FSLY Stock Holding History

Castleark Management’s Portfolio FSLY Stock Details FSLY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-177,688
Closed -$5.16M – 324
2026
Q1 		$5.16M Buy
+177,688
New +$2.92M 0.17% 142
2020
Q3 		– Sell
-81,614
Closed -$6.95M – 355
2020
Q2 		$6.95M Buy
+81,614
New +$3.22M 0.3% 97

Other funds holding FSLY

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
PCM
Penserra Capital Management Orinda, California $13B AUM 71.84% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return

Castleark Management's FSLY Position: Q2 2026 in Review

Castleark Management sold out of Fastly Inc (FSLY) in Q2 2026, closing a stake of 177,688 shares — an estimated $5.16M sold.

Castleark Management first reported a position in FSLY in Q2 2020 and held it in 2 quarters. The position peaked at $6.95M in Q2 2020. 282 funds tracked by Wall St. Rank hold FSLY as of Q2 2026.

  • Castleark Management reported no remaining Fastly Inc position as of Q2 2026 after selling out during the quarter.
  • Castleark Management sold 177,688 Fastly Inc shares in Q2 2026, an estimated $5.16M.
  • Castleark Management first reported a position in Fastly Inc in Q2 2020 and held it in 2 quarters.
  • Castleark Management's Fastly Inc position peaked at $6.95M in Q2 2020.
  • 282 funds tracked by Wall St. Rank held Fastly Inc as of Q2 2026.

Based on Castleark Management's 13F filing for Q2 2026, filed 14 Aug 2026.